GroupContentMenuController.php in Group Content Menu 8

Namespace

Drupal\group_content_menu\Controller

File

src/Controller/GroupContentMenuController.php

<?php

namespace Drupal\group_content_menu\Controller;

use Drupal\Core\Link;
use Drupal\Core\Url;
use Drupal\group\Entity\Controller\GroupContentController;
use Drupal\group\Entity\GroupInterface;
use Drupal\group_content_menu\GroupContentMenuInterface;
use Drupal\menu_link_content\MenuLinkContentInterface;
use Symfony\Component\DependencyInjection\ContainerInterface;
use Symfony\Component\HttpFoundation\RedirectResponse;

/**
 * Returns responses for 'group_content_menu' GroupContent routes.
 */
class GroupContentMenuController extends GroupContentController {

  /**
   * The group content plugin manager.
   *
   * @var \Drupal\group\Plugin\GroupContentEnablerManagerInterface
   */
  protected $pluginManager;

  /**
   * {@inheritdoc}
   */
  public static function create(ContainerInterface $container) {
    $instance = parent::create($container);
    $instance->privateTempStoreFactory = $container
      ->get('tempstore.private');
    $instance->pluginManager = $container
      ->get('plugin.manager.group_content_enabler');
    return $instance;
  }

  /**
   * {@inheritdoc}
   */
  public function addPage(GroupInterface $group, $create_mode = TRUE) {
    $bundle_names = $this
      ->addPageBundles($group, $create_mode);

    // Filter out the bundles the user doesn't have access to. Duplicated from
    // parent class so as to avoid information disclosure.
    foreach ($bundle_names as $plugin_id => $bundle_name) {
      if ($create_mode) {
        $plugin = $group
          ->getGroupType()
          ->getContentPlugin($plugin_id);
        $access = $plugin
          ->createEntityAccess($group, $this
          ->currentUser());
      }
      else {
        $access_control_handler = $this->entityTypeManager
          ->getAccessControlHandler('group_content');
        $access = $access_control_handler
          ->createAccess($bundle_name, NULL, [
          'group' => $group,
        ], TRUE);
      }
      if (!$access
        ->isAllowed()) {
        unset($bundle_names[$plugin_id]);
      }
    }

    // Disallow creating multiple menus of the same type.
    if (count($bundle_names) === 1) {
      reset($bundle_names);
      $plugin_id = key($bundle_names);
      if ($limitation = $this
        ->handleOneMenuLimitation($group, $plugin_id)) {
        return $limitation;
      }
    }
    $build = parent::addPage($group, $create_mode);

    // Do not interfere with redirects.
    if (!is_array($build)) {
      return $build;
    }

    // Overwrite the label and description for all of the displayed bundles.
    $storage_handler = $this->entityTypeManager
      ->getStorage('group_content_menu_type');
    foreach ($this
      ->addPageBundles($group, $create_mode) as $plugin_id => $bundle_name) {
      if (!empty($build['#bundles'][$bundle_name])) {
        $plugin = $group
          ->getGroupType()
          ->getContentPlugin($plugin_id);
        $label = $plugin
          ->getLabel();
        $bundle_label = $storage_handler
          ->load($plugin
          ->getEntityBundle())
          ->label();
        $description = $this
          ->t('Add new menu of type %bundle_label to the group.', [
          '%bundle_label' => $bundle_label,
        ]);
        $build['#bundles'][$bundle_name]['label'] = $bundle_label;
        $build['#bundles'][$bundle_name]['description'] = $description;
        $build['#bundles'][$bundle_name]['add_link'] = Link::createFromRoute($label, 'entity.group_content_menu.add_form', [
          'group' => $group
            ->id(),
          'plugin_id' => $plugin_id,
        ]);
      }
    }
    return $build;
  }

  /**
   * Handle one menu per group limitation.
   *
   * @param \Drupal\group\Entity\GroupInterface $group
   *   The group.
   * @param string $plugin_id
   *   The group content plugin ID.
   *
   * @return \Symfony\Component\HttpFoundation\RedirectResponse|bool
   *   The redirect response or FALSE if no need to handle..
   *
   * @throws \Drupal\Component\Plugin\Exception\InvalidPluginDefinitionException
   * @throws \Drupal\Component\Plugin\Exception\PluginNotFoundException
   */
  protected function handleOneMenuLimitation(GroupInterface $group, $plugin_id) {
    if ($group_contents = $this->entityTypeManager
      ->getStorage('group_content')
      ->loadByGroup($group, $plugin_id)) {
      $group_content = reset($group_contents);
      if ($menu_type = $this->entityTypeManager
        ->getStorage('group_content_menu_type')
        ->load($group_content
        ->getEntity()
        ->bundle())) {
        $this
          ->messenger()
          ->addError($this
          ->t('This group already has a menu "%menu" of type "%type". Only one menu per type per group is allowed.', [
          '%menu' => $group_content
            ->getEntity()
            ->label(),
          '%type' => $menu_type
            ->label(),
        ]));
        $route_params = [
          'group' => $group_content
            ->getGroup()
            ->id(),
        ];
        $url = Url::fromRoute('entity.group_content_menu.collection', $route_params, [
          'absolute' => TRUE,
        ]);
        return new RedirectResponse($url
          ->toString());
      }
    }
  }

  /**
   * {@inheritdoc}
   */
  public function createForm(GroupInterface $group, $plugin_id) {
    if ($limitation = $this
      ->handleOneMenuLimitation($group, $plugin_id)) {
      return $limitation;
    }
    return parent::createForm($group, $plugin_id);
  }

  /**
   * {@inheritdoc}
   */
  protected function addPageBundles(GroupInterface $group, $create_mode) {
    $bundles = [];

    // Retrieve all group_content_menu plugins for the group's type.
    $plugin_ids = $this->pluginManager
      ->getInstalledIds($group
      ->getGroupType());
    foreach ($plugin_ids as $key => $plugin_id) {
      if (strpos($plugin_id, 'group_content_menu:') !== 0) {
        unset($plugin_ids[$key]);
      }
    }

    // Retrieve all of the responsible group content types, keyed by plugin ID.
    $storage = $this->entityTypeManager
      ->getStorage('group_content_type');
    $properties = [
      'group_type' => $group
        ->bundle(),
      'content_plugin' => $plugin_ids,
    ];
    foreach ($storage
      ->loadByProperties($properties) as $bundle => $group_content_type) {

      /** @var \Drupal\group\Entity\GroupContentTypeInterface $group_content_type */
      $bundles[$group_content_type
        ->getContentPluginId()] = $bundle;
    }
    return $bundles;
  }

  /**
   * Provides the menu link creation form.
   *
   * @param \Drupal\group_content_menu\GroupContentMenuInterface $group_content_menu
   *   An entity representing a custom menu.
   *
   * @return array
   *   Returns the menu link creation form.
   */
  public function addLink(GroupContentMenuInterface $group_content_menu) {
    $menu_name = GroupContentMenuInterface::MENU_PREFIX . $group_content_menu
      ->id();
    $menu_link = $this
      ->entityTypeManager()
      ->getStorage('menu_link_content')
      ->create([
      'menu_name' => $menu_name,
      'bundle' => 'menu_link_content',
    ]);
    return $this
      ->entityFormBuilder()
      ->getForm($menu_link);
  }

  /**
   * Provides the menu link edit form.
   *
   * @param \Drupal\menu_link_content\MenuLinkContentInterface $menu_link_content
   *   The menu link content.
   *
   * @return array
   *   Returns the menu link edit form.
   */
  public function editLink(MenuLinkContentInterface $menu_link_content) {
    return $this
      ->entityFormBuilder()
      ->getForm($menu_link_content);
  }

}

Classes

Name	Description
GroupContentMenuController	Returns responses for 'group_content_menu' GroupContent routes.